Grafana Agent

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v0.38.0 · 1y+
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This is release v0.38.0 of Grafana Agent.

v0.38.0 is a huge release, with many new features, improvements, and bugfixes. This page only covers a very small portion of those changes. For a full list of changes, refer to our CHANGELOG.

Upgrading

Read the relevant upgrade guides for specific instructions on upgrading from older versions:

Notable changes:

Breaking changes

  • The deprecated otelcol.exporter.jaeger component has been removed as scheduled in v0.36.
  • Some metrics for the mysqld exporter integration ahve been removed or renamed.

Features

  • New flow mode components:
    • otelcol.processor.filter filters OTLP telemetry data using OpenTelemetry Transformation Language (OTTL).
    • otelcol.receiver.vcenter receives metrics telemetry data from vCenter.
  • Changes to River:
    • River now supports "raw strings" to avoid needing to escape special characters.
    • River now permits using [] to access non-existent keys in an object, rather than generating an error.

Enhancements

  • Improvements to log collection in flow mode:
    • Improve detection of rolled log files in loki.source.kubernetes and loki.source.podlogs.
    • Clustering is now supported in loki.source.kubernetes and loki.source.podlogs.
    • Added support for replaying unsent data for loki.write when WAL is enabled.
  • Improvements to the flow controller:
    • Improved resilience of graph evaluation in presence of slow components.

Installation

Refer to our installation guides for how to install the variants of Grafana Agent: